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PCE
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DIFF Subgroup
F01L 27/02

the machine or engine having rotary or oscillatory valves

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Distribution or expansion-valve gear peculiar to free-piston machines or engines and not provided for in groups > the machine or engine having rotary or oscillatory valves

CPC:

Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00 > the machine or engine having rotary or oscillatory valves

No child classifications to compare. This is a leaf node in both IPC and CPC.